Fire door



June 1927' H.- D. BARBEE FIRE noon Filed Aug. 2 1926 2 Sheets-Sheet 1 June 1927' H. D. BARBEE w l'633757 FIRE DOOR I Filed Aug. 26. 1926 2 Sheets-Sheet 2 Z M V 5 /z\ Patented June 28, 1927.

HENRY I). BARBEE, or GREENSBORO, NORTH cARoLIu A.

Finn bogs.

application filed August 2'6, 192s; seal No. 131,670.

This invention has reference to fire door constructions and aims to provide-a novel,

construction whereby a the door may be efficiently and conveniently operated by exertion onthe part of the operator.

An important object "of the invention is to so construct the operating mechanism that the lire doors will be exceptionally sensitive to the movement of the head employed in connection with the cams of the doors.

A still further object of the invention is toprovide an auxiliary operating mechanism for use in emergency cases, should the operating mechanism normally employed for operating the doors become inoperative, the auxiliary operating means being so constructed that it may be employed for holding the doors to the limit of their open positions.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a front elevational view of a fire door constructed in accordance with the invention. 7

Figure 2 is a vertical sectional view through the central portion of the fire door taken on line 22 of Figure 1.

Figure 3 is a sectional view taken on line 33 of Figure 1. I

Figure 4 is a plan view of the operating pedal.

Referring to the drawings in detail, the tire door embodies a supporting frame 5 which is properly shaped to fit the usual the door opening of a boiler.

The frame 5 includes an upstanding portion 6 that has a forwardly extended flange 7, provided with openings to accommodate bolts 8 that are employed for securing the plate 9 to the upstanding portion 6.

This plate 9 is provided with downwardly extended portions 10 and 11 respectively, the downwardly extended portions 10 pro vided to guard the forward end of the shafts 12 on which the doors 13 are hung. These doors 13 are provided with upstanding portions 14 formed integral with the body pormanual power with the minimuma'mount of position as shown by Figure tions 15 thereof, the upstanding portions having theirinner adjacent edges curved as at 16 providing cams to be engaged by the rollers 17 of the actuating head 18.

As shownmo're clearly by Figure 1 of the drawings, the head 18 is provided with later ally disposed arms 19 which are bifurcated to receive the rollers 17 that, as before stated move over the cams 16 reducing friction between the arms 19 and earns 16' to 'the minimum.

1 The head 18 is carried at the lower and ofthe rod 21, the upper endof the rod 21 being connected with the substantially U- shaped member 22 which has pivotal connection' with the arm 23 at 24. ,7

i This arm 23. is pivotally supported at a point intermediate its ends, at the upper end of the post 25 secured at one side of the upstanding portion of the frame as clearly shown by Figure 1. Formed in the arm 23 are a plurality of spaced openings 26 which receive the bolt 27 carried at the uppereiid of the operating rod 28 so that the movement of the arm 23 may be adjusted in such a way to cause the doors to move to various positions.

Connected with the lower end of the rod 28 is a vertically movable bar 29 that is pivotally supported atone of its ends at 30, the bar 29 being supplied with a pivoted. foot piece 31 to be engaged by the foot of the operator to press the bar 29 downwardly and accomplish the operation of the device.

It might be further stated that the construction of the foot piece 31 is such that it normal operating 4 in full lines, to the opposite side of the bar 29 as shown in dotted lines in Figure 4, with the result that the foot piece may be engaged by the heel of the operator, should itbe found more convenient to operate the bar by the action of the heel.

Extending outwardly from the front faces of the upstanding portions 14 are arms 32 and 33 respectively, the arms having curved faces 33 to'be engaged by the lever may be swung from its 34 to the end that by a downward pull on i the lever 34 the doors may be swung to their open positions.

' Associated with the lever 34 and supported by the plate 9 is a stop block 35 under which the lever may be moved when the doors are in their open positions, to restrict movement of the lever 34 and consequently hold the doors in their open positions, should it be desired to hold the doors in their open positions to facilitate repairing of the fire tubes.

From the foregoing it will be obvious that due to this construction, a person may by applying pressure to the loot piece 31 move the rod 28 downwardly tilting the arm 23 to raise the rod 21., which in turn moves the head '18 upwardly;

As the head 18 moves upwardly, the rollers will be moved over the cams 16 to swing the doors on their pivots to their open positions.

It might be further stated that the device forming the subject matter of this invention may be used either in connection with locomotive boilers or stationary boilers or any type of furnace wherein a [ire door is employed.

In applicants invention it will be seen that the door may be operated when the boiler is cold, and it is unnecessary to wait for steam to be generated in order to operate the door.

I claim:

1. A fire door including a pair of pivotally supported door sections having upwardly extended end portions, the adjacent edges thereof being cut away to define cams, a head having laterally extended arms operating between the upwardly extended end portions, rollers at the ends of the arms and adapted to move over the cams to move the door sections outwardly when the head is elevated.

2. A lire door including a pair of pivotally supported lire door sections having upstanding portions, the adjacent inner edges oi? the upstanding portion being curved defining cams a head fitted within the cutout portions and having laterally extended arms, rollers on the arms and contacting with. the cams at points below the pivot points of the door sections, said head adapted to swing the door sections outwardly'upon upward movement of the head, and means for moving the head.

In testimony that I claim the foregoing as my own, I have hereto afixed my signature.

HENRY D. BARBEE. 

